Is there a Nostr bracket as well?

Raw JSON

{
  "kind": 1,
  "id": "fd3f33828533075824753ee0ec90a452ef8f29a85dddf4397e98bfdee9542ee7",
  "pubkey": "a44dbc9aaa357176a7d4f5c3106846ea096b66de0b50ee39aff54baab6c4bf4b",
  "created_at": 1773766372,
  "tags": [
    [
      "p",
      "a44dbc9aaa357176a7d4f5c3106846ea096b66de0b50ee39aff54baab6c4bf4b"
    ],
    [
      "p",
      "fc18abd568f73549cb01e3b6e2406f43ad7864cc59789dbd7cbfa8a6923f978c"
    ],
    [
      "e",
      "4797ade4cf9f27a3f19e4056c1cc43fc58edf3bd58fba0189a06ce08221de546",
      "",
      "reply",
      "fc18abd568f73549cb01e3b6e2406f43ad7864cc59789dbd7cbfa8a6923f978c"
    ],
    [
      "e",
      "a4af3e04d12d30dbfcf9b29ad88eb293203b8b54370c4902c6ce66fd32102eef",
      "",
      "root",
      "a44dbc9aaa357176a7d4f5c3106846ea096b66de0b50ee39aff54baab6c4bf4b"
    ]
  ],
  "content": "Is there a Nostr bracket as well? \n\n",
  "sig": "1edf140caf90c23d9ecd71c29463359d7ea269713f11a948b10434396636750092a6f10adafa5f61db3f3b2307e313e654d8631bf35d8ef85f79e968344ee5cf"
}